Stereolithography is the most common rapid prototyping system ever. Allows the realization of resin models from 3D CAD designs. Stereolithography offers good performance in terms of precision components and the ability to make complex shapes having thin walls and a good surface finish. As industrial application, Stereolithography allows the rapid production of conceptual, functional and technical prototypes. These models can also be used as prototypes for foundry moulding or vacuum.